...the OXO Good Grips Water Bottle offers convenience and easy access to quench your thirst quickly. Two openings – a narrow one at the top for sipping and a larger one below make filling with ice and cleaning simple and neat. Holding up to 24-ounces, the bottle includes measurement markings to track beverage intake or as reference when adding supplements. The lid is securely tethered with a strong stainless steel cable. For safety, the Bottle is constructed of durable BPA-free Tritan and comes in a rainbow of colors.